If you are running an older computer that does not offer SATA then this could solve your storage problems. At 400 gig its not going to compete with the recent terabyte offerings posted here - but as an IDE drive from the same award winning Spin Point range it offers the cheapest gigs per buck from an award winning line.
Before buying one - please ensure your BIOS permits drives over 133 gig or that you are capable of flashing a BIOS.
Lastly - there are some companies come up on searches for offering a better price - however they are all listing them ex VAT - this price is delivered (with free postage from AV forums).
Capacity: 400 GB
Edition: Spinpoint T166
Form Factor: 3.5"
Rotation Speed: 7200 rpm
Access Time: 8.9 ms
Interface: IDE (PATA)